I have a small sound issue in Lakka (on the Pi 3 model B+) and was wondering if anyone knows how to fix it. Basically, everytime I start Lakka I have no sound using the Speaker jack.
This answer from a couple of years ago works for me: Audio over Speaker Jack in Lakka?
amixer cset numid=3 1
....but I have to redo the procedure in Putty every time I restart the Pi. Anyone knows how to make the change permanent/default? Is that doable?